Waterproofing composition



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UNITED STATES; PATENT;

emains s. snnn'ronyjor SEATTLE, WASHINGTON l 3 i a WAT RP OO ING oomrosi'rion l No Drawing. 7 a plication fi1ed'A pi'il'18,-1925. srji ll -im 24,262. g

This invention relates to paper 'Watersub stance and the petroleum-ether serves as s v proofing compositions. 1 r I g adrier. V -The primary object of the inventionis the The metallic oxide employed in my coml i provision oflacomposition of this character position would bfe'of akind suitable-to a par-i Y 1 resinous-gum good resultsare obtainable by. day of April,"1925.; V f

,may be explained as followsz The benzol f 7 5 which is inexpensive to manufacture and ticular grade of paper'stock'forobtainingva: 63S V readily applied. rious results-such oxide being', for instance,

A further object ofthe invention either oxide of"-lead,-or oxide of zinc, or a provision of a Waterproofing composition mixture of the lead or zinc oxide with oxide Which will serve as a preservative .to render .oflead'in the proportion of about four to 10 paper practicallyimmune to the destructive one: 1 I f o to 60 v'etl'ects at atmospheric and 'temperature, An aromatic substance.as-anise oil, forchanges. 7 a t t example',may be employed foruse With oer-1 I Alstill further object istheprovision of a tain grades of paper; Waterproofing composition for treating pa- WhatI claim, is

' per Without rendering thesame hard and 1. compositionv'for Waterproofing pa; 65 '4 brittle. f V I per comprisingapreparationtcomprising'ap-' The invention consists of a mixture of a proximately twelve'parts of oxide otzinc,

metallic oxide, benzol, petroleum-ether, and lthre'e .parts'of oxide of lead, and five parts of a pliantcementatory .material, 7 such as zdamma'r gum,-With about eighty-two parts of v 29 dammar or other resinousgum, having'simia liquidconsisting'of benzol'and ..petroleumnlar characteristics, silicate of sodium or Sill-r iether. v 1 y v cate'of potassium. F 2. In treating paperto render sa e-11 11 gany specific proportionsinflpreparing the fthickness, a compositionysaid compositionfcomposition I prefer to. use the ingredients in comprising the solids zinc oxide and dammar about the following proportions,fby bulk, gum, and-the fluid'oomponents 'benzoljand Although'l do; not to limit myself to? absorbent of moisture throughout its entire I 7 viz: metallic oxide, sixteen parts; gum, four "petroleum ether, sai'dfsoli'ds and'fluidsbeingv parts; benzol,seventy-fourxparts; and pe Linsubstantiallythe.proportion'ofone-totfour. f

troleum' -ethen eight parts; ,Instead of the ,fSig'ned at Seattle, ashington, vthis 9th,,-

. substituting there-for a like quantity of silicate of sodium or potassium (soluble glass) 1%, i The ingredients of my waterproofing com-f V- 7 position are mixedtogether producing'aliq- 'uid mass ready for-use. 1 v I In applying the compositionto paper, the I I latter is advantageously immersed ina quantitvofthe composition. r

The functions offthe varlouscomponentsgi serves as a diluting agent With respect tothey j V to t metallic oxide, thatis tosay,to produceafluid mixture of the oxide and benzol'; said benzol also acts upon the paper material or stock to cause the sameto have 'an aflinityforsthje comr position as a v hole therebyipermitting its 'entering'the minuteporesof the papergto-zi thoroughly permeate the latter;'the oxide Z serves as a metallic jfiller for the paper; the

7: gum (or silicate) serv es as a cementatory V 

